AW: [microblaze-uclinux] Dynamically Changing the clock...

["David Beyeler" <david.beyeler@xxxxxxxxxxxxxxxxxxx>]

Do you only need to switch between two clocks? Then I suggest that you may use one of the BUFGMUX. With this Block you can switch between two clocks without getting any glitches or short pulses on the output. You have only to be aware that the select signal does not violate the setup time to the presently selected clock.

Cheers, 
David Beyeler
----------------------------------------------
Senior Hardware Engineer
Imaging Solutions AG
www.imagingsolutions.ch
----------------------------------------------

> -----Ursprüngliche Nachricht-----
> Von: Ryan Angilly [mailto:angilly@gmail.com]
> Gesendet: Dienstag, 16. November 2004 22:43
> An: microblaze-uclinux@itee.uq.edu.au
> Betreff: [microblaze-uclinux] Dynamically Changing the clock...
> 
> I have an application where I want to change the core clock speed of
> the microblaze on the fly.  I haven't tried anything yet, but I'm
> thinking about installing a little programmable clock divider that
> sits between the clock pad on the FPGA and the input to the sys_clk
> signal in microblaze.  Has anyone done anything like this, and is it
> as monsterously hard as I think it's going to be?
> 
> Thanks,
> 
> --
> Ryan Angilly
> 
> President -- Sigma Phi Epsilon
> Research Assistant -- Machine Vision Laboratory
> Program Manager -- WPI PANSAT Nanosatellite
> Worcester Polytechnic Institute M.S. '06
> ___________________________
> microblaze-uclinux mailing list
> microblaze-uclinux@itee.uq.edu.au
> Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
> Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-
> uclinux/


___________________________
microblaze-uclinux mailing list
microblaze-uclinux@itee.uq.edu.au
Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux
Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/